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An average score of 90 for 5 exams is needed for a final grade of A. John's first 4 exam grades are 79, 89,

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An average score of 90 for 5 exams is needed for a final grade of A. John's first 4 exam grades are 79, 89, 97, and 95. Determine the grade needed on the OA. 100 000 B. 85 C. 95 D. 90

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